Louis chiozza



' of concentration of the sulphurous acid.

steeping should be effected in wooden vatsv LOUIS GHIOZZA, OFCERVIGNANO, NEAR TRIESTE, AUSTRIA.

'iVlPROVEMENT IN PROCESSES OF TREATING MIZE.

Specification forming part of Letters Patent No. E fit'flfid, datedAugust 31, 1875; application filed August 17, 1875.

' To all whom it may concern Be it known that I, LoUIs CHIOZZA, ofOervignano, near Trieste, Austria, have invented a new and ImprovedProcess of Treating Maize, of which the following is a specification IThe object of this invention is to so treat corn or maize that the oilyconstituents thereof may be readily and completely separated from thefarinaceous parts. In producing flour from maize it is essential that itshould contain all the gluten and no oil; otherwise the oil, becomingrancid, deteriorates the flour.

My invention consists in immersing the whole grain, previous tocrushing, .in a solution of one part, by volume, of sulphurous acid inone part of water, and in subsequently crushing, screening, and dryingthe grain, a judicious screening system serving to separate theuncrushed germs from'the crushed perisperm, so as to obtain the formereither entire, or nearly so, for the production of oil or other purpose,While the crushed perisperm will furnish a line flour of surpassingwhiteness, provided, white maize has been used.

7 By the immersion of the grain in the sulphurous-acid solution, thefarinaceous parts of the maize are thoroughly softened, and the peculiargummy substance, to which it-owes its hardness, is entirely eliminated,while the germ or cotyledon is rendered sufliciently elastic to enableit to pass between rollers without being crushed. The steeping may becontinued for from ten to fifteen days, or even longer, according to thepurpose for which the product is intended, and the quality of the maize,surrounding temperature, and degree The having conical bottoms, withappliances for discharging either the liquid or the grain at will.

grain, after it has been duly softened by the bath above referred to, isfed between crushing-rollers or other crushing mechanismfso set as toallow the germs to pass through unbroken,while the farinaceous matterisproperly reduced. These rollers discharge upon ascreen, through whichthe broken farinaceous matter will pass in form of Y grits and flour,while the germs. and pellicles will pass over the edge of the screen.The parts being thus separated can be gradually exposed to differentscreens and devices for separating the grades of flour, and thefarinaceous matter may be recrushed, if desired. But both subdivisionsare,'after the first screening, exposed to a gentle drying process, sothat they may gradually give ofl the moisture which they absorbed in thebath. The pellicle's and germs can also be conveniently separated andput to different uses. In the manufacture of starch, currents of water vmay be utilized after the crushing process to properly afi'ect thecrushed matter. But the oily matter will be separated and graduallydried, as before, while the starch is dried after the process isfinished. p

I claim as 'my invention-- The process herein described of separatingthe oily from the farinaceous constituents of maize by first steepingthe grain in a solution of sulphurous acid,'then crushing it so as toleave the germs unbroken, and finally screening and drying, allsubstantially as specified.

. LOUIS UHIOZZA. -Witnesses ANT. MARTIN, ANTL. HANNAIPEL.

